Improvement in fire-place heating-stoves



ZSheets SheetL C. H. BLANCHARD.

Fire-Place Heating-Stove.

N0. I30,6Q2. Patented Aug. 20,1872.

ATTEET. INVE NTUH (3.8km q Qa Amp/hand AM HID ra-u mam/11 1110 ('0. M imam/v53 Pf? 0055/ Fire-Place Heating-Stove.

N0. 130,692, Patented Aug 20,1872.

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M Y II} I h i I 4 WW I [H iii it E i I A i E UNITED. STATES PAT NT OFFICE.

CHARLES H. BLANOHARD, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN FIRE-PLACE HEATlNG-STOVES.

Specification forming part of Letters Patent No. 180,692, dated August 20, 187-2.

Specification describing a certain Improved Fire Place Stove or Heater, invented by GHARLEs H. BLANoHAnn, of the city and county of St. Louis and State of Missouri.

My invention relates to a heating-stove for insertion in a fire-place in place of a grate, the said stove being specially constructed for consumption of bituminous or soft coal. My invention consists in the combination, in a fireplace stove, of a remoyable basket-grate, a removable cap-plate, (preferably of refractory 1naterial,) and a removable top plate, the said cap-plate and top plate being separated by an air-chamber, and adapted as hereinafter described, to permit the removal of the grate without displacing any parts other than the said cap-plate and top plate.

Figure 1 is a perspective view of my improvement. Fig. 2 is a transverse vertical section from front to back, (on an enlarged scale. 7

A i the base or bottom plate, from which extend upward two curved plates, B and 0, whose upper edges are connected together by a horizontal, flat, curved plate, D. The plates B G D circle of the plate 0, and may be furnished with registers to admit and. regulate the amount of air supplied to the fire in the basket-grate. Above the plate D the stove has a nearly cylindrical portion, of which the rearhalf F is a solid plate; but the front contains the doors G, and apertures inthe metal stopped with mica-frames f. The doors have micaframes g, and may be supported on hinges, (as shown,) or be made to slide open and shut. At the top of the part F is an annular horizontal plate, 11, which has a central circular cavity in which the basket-grate I is inserted from the top a flange, 6, upon the upper edge of the grate, taking over the inner edge of the plate H, and serving to support the grate. The grate has a shaking bottom, J, turning on a pivot. j, and having a lug, j, perforated to admit the point of the poker to shake the bottom. From the plate H arise two concentric cylinders, of which the inner one, K, is preferably of cast-iron, and the outer one, L, of sheet-iron, slipped on a flange, h, of the plate H. Between the cylinders K and L is an annular air-chamber, M, serving to prevent the escape of heat into the fire-place chimney. Air enters into and escapes from the chamber M through holes 1 in the front of the cylinder L, the air becoming heated in the chamber M and serving to heat'the room. N is the mouth through which coal is fed to the fire. The

throat passes through both cylinders K and L. It has a door, a. k are lugs on the inner side of the cylinder K, said lugs sustaining a removable plate or tile, 0, constituting the top of the combustion-chamber. The plate or tile 0 may be of castiron, but is preferably made of fire-brick, steatite, or other refractory substance. Between the tile 0 and the topplate P of the stove is a chamber in communication with the chamber M, and serving the same general purpose as the said chamberviz., to prevent the escape of heat into the fire-place chimney and to heat the room. The tile 0 and top-plate P are so constructed and applied that when they are removed the basket-grate I may be lifted out without disturbing any other part of the stove, and so that while said plates are in position the space between them forms a part of the hot -air chamber, as before stated. R is the archplate, serving to close the aperture around the stove. The products of combustion escape from the combustion-chamber through horizontal fiues s, communicating with vertical flues or columns S, whose lower ends are in communication with the base-chamber E, from which they (via, the products of combustion) have exit through the vertical flue or smokepipe T, which ascends the fire-place chimney, and which may communicate with drums to heat other rooms in the house. U is a flue communicating with the combustion-chamber and the flue T, and having a damper, V, operated by a handrod, W, extending around to the front part of the stove. This damper is ordinarily closed, and is only opened when the tire is first lighted (or sometimes when'a fresh supply of fuel is added) to allow the by an air-chamber, and all arranged to opersmoke free exit from the combustion-chamber ate as herein set forth.

through the smoke-pipe T. In testimony of which invention I have hereunto set my hand.

Olmm- CHARLES H. BLANCHARD. The fire-place stove herein described, constructed with a removable basket-grate, I, re- Vitnesses: movable tile or cap-plate O, and removable SAML. KNIGHT, top plate P, the said plates being separated I W. A. BRAWNER. 

